Shofiyah, Laily, et al. “Role of Gamma-Glutamyl Transferase, High Sensitivity C Reactive Protein and Apolipoprotein B As A Marker of Disease Severity in Psoriasis”. Gema Lingkungan Kesehatan, vol. 23, no. 3, July 2025, pp. 377-83, doi:10.36568/gelinkes.v23i3.285.